X0306 4 2019-07-12 0 0001716621 Ra Medical Systems, Inc. RMED 0001746687 Irwin Dean C/O RA MEDICAL SYSTEMS, INC. 2070 LAS PALMAS DRIVE CARLSBAD CA 92011 1 1 1 0 See Remarks 0001748379 Dean Irwin & Melissa Burstein, as Trustees U/T/A June 12, 2017 C/O RA MEDICAL SYSTEMS, INC. 2070 LAS PALMAS DRIVE CARLSBAD CA 92011 0 0 1 0 Common Stock 2019-07-12 4 S 0 7400 3.2665 D 213812 D Common Stock 2019-07-12 4 S 0 4400 3.2756 D 128438 I By Spouse Common Stock 2803852 I See Footnote The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plans adopted by the reporting person and the reporting person's spouse on September 27, 2018. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $3.07 to $3.35 per share. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Of the reported shares 173,670 shares are represented by Restricted Stock Units. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $3.06 to $3.35 per share. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Of the reported shares 104,202 shares are represented by Restricted Stock Units. Shares held of record by Dean Irwin & Melissa Burstein, as Trustees U/T/A June 12, 2017, of which Dean Irwin serves as co-trustee. CEO, Co-President, CTO, and Chairman of Board /s/ Daniel Horwood, as Attorney-in-Fact, on behalf of Dean Irwin and Dean Irwin & Melissa Burstein, as Trustees U/T/A June 12, 2017 2019-07-16